Closestool control circuit, intelligent cover plate and intelligent closestool

Abstract

The embodiment of the utility model provides a closestool control circuit, an intelligent cover plate and an intelligent closestool, and belongs to the technical field of sanitary ware. The circuit comprises a control chip which comprises a driving input pin and a driving output pin; the anode of the diode is connected with the first driving output pin, and the cathode of the diode is connected with one end of the slow descent resistor; the switch tube comprises a first switch end, a second switch end and a third switch end, the first switch end is connected with the other end of the slow descent resistor, and the third switch end is connected with the second driving output pin; the inductive switch module comprises a first inductive end, a second inductive end, a third inductive end and a fourth inductive end, the first inductive end is connected with the slow descent power supply, the second inductive end is grounded, the third inductive end is connected with the second switch end, and the fourth inductive end is connected with the third switch end. The slow descending effect of the seat ring or the seat cover of the intelligent closestool under the energy-saving requirement can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of sanitary ware, and in particular to a toilet control circuit, a smart cover and a smart toilet. Background Art

[0002] A smart toilet is a sanitary device that combines modern technology and convenience. It is usually equipped with various intelligent functions to provide a more comfortable and convenient user experience. In order to prevent the seat or seat cover of a smart toilet from falling rapidly due to gravity and making a loud collision sound, and to prevent frequent strong collisions from causing damage to the smart toilet, a smart toilet is usually equipped with a slow-down function to achieve mechanical slow-down of the seat or seat cover.

[0003] In the related art, a circuit containing a slow-drop resistor is often used to control the slow-drop of the seat ring or the seat cover. However, the related art has high requirements on the resistance value of the slow-drop resistor. Under the requirement of energy saving, only the slow-drop resistor with a higher resistance value can be selected for application in the circuit. This method greatly reduces the slow-drop effect of the seat ring or the seat cover. Utility Model Content

[0004] The embodiments of the present application provide a toilet control circuit, a smart cover plate and a smart toilet, which improve the slow-dropping effect of the seat ring or seat cover of the smart toilet under energy-saving requirements.

[0005] In a first aspect, an embodiment of the present application provides a toilet control circuit, comprising:

[0006] A control chip, the control chip includes a drive input pin and a drive output pin, and the drive output pin includes a first drive output pin and a second drive output pin;

[0007] A diode and a slow-down resistor, wherein the anode of the diode is connected to the first drive output pin, and the cathode of the diode is connected to one end of the slow-down resistor;

[0008] A switch tube, the switch tube comprises a first switch end, a second switch end and a third switch end, the first switch end is connected to the other end of the slow-down resistor, and the third switch end is connected to the second drive output pin;

[0009] The inductive switch module includes a first inductive end, a second inductive end, a third inductive end and a fourth inductive end, wherein the first inductive end is connected to the ramp-down power supply, the second inductive end is grounded, the third inductive end is connected to the second switch end, and the fourth inductive end is connected to the third switch end;

[0010] Among them, when there is an electrical signal input to the first sensing end, the third sensing end and the fourth sensing end are connected, the second switch end and the third switch end have the same potential, and the switch tube is cut off; when there is no electrical signal input to the first sensing end, the third sensing end and the fourth sensing end are disconnected, the second switch end and the third switch end have different potentials, and the switch tube is turned on.

[0011] In some embodiments, the switch tube is an NPN transistor, which includes a collector, a base and an emitter, wherein the collector is connected to the other end of the slow-down resistor, the base is connected to the third sensing end, and the emitter is connected to the fourth sensing end.

[0012] In some embodiments, the switch tube is an NMOS tube, which includes a drain, a gate and a source. The drain is connected to the other end of the slow-down resistor, the gate is connected to the third sensing end, and the source is connected to the fourth sensing end.

[0013] In some embodiments, the sensing switch module includes a photodiode and a photosensitive switch, the anode of the photosensitive diode is connected to the ramp-down power supply through a first resistor, the cathode of the photosensitive diode is grounded, one end of the photosensitive switch is connected to the third switch end, and the other end of the photosensitive switch is connected to the second switch end; when an electrical signal is input to the anode of the photosensitive diode, the photosensitive switch converts the optical signal emitted by the photosensitive diode into an electrical signal to make the two ends of the photosensitive switch conductive.

[0014] In some embodiments, the toilet control circuit is also electrically connected to the rotating motor, a coil is arranged inside the rotating motor, the rotating motor includes a first driving pole and a second driving pole, the anode of the diode is connected to the first driving pole, and the third switch end is connected to the second driving pole; the rotating motor is also electrically connected to the angle sensor, and the third driving pole of the angle sensor is connected to the driving power supply, and the fourth driving pole of the angle sensor is grounded.

[0015] In some embodiments, the control chip further includes a ground pin and a power pin, the ground pin is used for grounding, the power pin is electrically connected to an external power supply through a filter circuit, and the filter circuit includes a first capacitor and a second capacitor connected in parallel.

[0016] In some embodiments, the toilet control circuit also includes a protection circuit that is electrically connected to both the control chip and the rotating motor, and the protection circuit includes a third capacitor and an overvoltage protector connected in parallel.

[0017] In some embodiments, the toilet control circuit further includes a second resistor, one end of the second resistor is connected to the third sensing end, and the other end of the second resistor is connected to the anode of the diode.

[0018] In some embodiments, the toilet control circuit also includes a third resistor and a fourth resistor, one end of the third resistor and the fourth resistor are both connected to the second switch end, the other end of the third resistor is connected to the third sensing end, and the other end of the fourth resistor is connected to the third switch end.

[0019] In a second aspect, an embodiment of the present application provides a smart cover, including the toilet control circuit in the first aspect.

[0020] In a third aspect, an embodiment of the present application provides a smart toilet, including the toilet control circuit in the first aspect.

[0021] The embodiments of the present application include at least the following beneficial effects: the toilet control circuit of the embodiments of the present application can shield the electric energy consumed by the slow-down resistor when powered on, that is, it can realize the mechanical slow-down of the seat ring or seat cover while saving electric energy; and release the shielding of the slow-down resistor when powered off, and drive the charge to move in a closed loop through the induced electromotive force generated by cutting the magnetic field to form a current, which can drive the rotating motor to work in a short time, thereby completing the mechanical slow-down of the seat ring or seat cover; in this way, the slow-down effect of the seat ring or seat cover is improved under energy-saving requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an optional circuit diagram of a toilet control circuit provided by an embodiment of the present application;

[0023] Figure numerals: control chip 110, first capacitor 111, second capacitor 112, diode 120, slow-down resistor 130, switch tube 140, first switch end 141, second switch end 142, third switch end 143, sensing switch module 150, first sensing end 151, second sensing end 152, third sensing end 153, fourth sensing end 154, rotating motor 160, angle sensor 161, third capacitor 171, overvoltage protector 172, first resistor 180, second resistor 181, third resistor 182, fourth resistor 183. DETAILED DESCRIPTION

[0024] In the description of the present application, it should be understood that the descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0025] It should be understood that in the description of the embodiments of the present application, "a" means more than one, "a plurality" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first", "second", etc., it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In the description of the embodiments of the present application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the embodiments of the present application based on the specific content of the technical solution.

[0027] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0028] A smart toilet is a sanitary device that combines modern technology and convenience. It is usually equipped with various intelligent functions to provide a more comfortable and convenient user experience. In order to prevent the seat or seat cover of a smart toilet from falling rapidly due to gravity and making a loud collision sound, and to prevent frequent strong collisions from causing damage to the smart toilet, a smart toilet is usually equipped with a slow-down function to achieve mechanical slow-down of the seat or seat cover.

[0029] In the related art, a circuit containing a slow-drop resistor is often used to control the slow-drop of the seat ring or the seat cover. However, the related art has high requirements on the resistance value of the slow-drop resistor. Under the requirement of energy saving, only the slow-drop resistor with a higher resistance value can be selected for application in the circuit. This method greatly reduces the slow-drop effect of the seat ring or the seat cover.

[0030] The following is combined with Figure 1 , further elaborating on the embodiments of the present application, wherein the reference numerals of the various structures are in the attached Figure 1 All of them are mentioned in.

[0031] The embodiment of the present application provides a toilet control circuit, a smart cover, and a smart toilet, wherein the toilet control circuit includes: a control chip 110, the control chip 110 includes a drive input pin and a drive output pin, the drive output pin includes a first drive output pin and a second drive output pin;

[0032] A diode 120 and a slow-down resistor 130, wherein the anode of the diode 120 is connected to the first drive output pin, and the cathode of the diode is connected to one end of the slow-down resistor;

[0033] The switch tube 140 includes a first switch terminal 141, a second switch terminal 142 and a third switch terminal 143, wherein the first switch terminal 141 is connected to the other end of the slow-down resistor 130, and the third switch terminal 143 is connected to the second drive output pin;

[0034] The inductive switch module 150 includes a first inductive terminal 151, a second inductive terminal 152, a third inductive terminal 153 and a fourth inductive terminal 154. The first inductive terminal 151 is connected to the ramp-down power supply, the second inductive terminal 152 is grounded, the third inductive terminal 153 is connected to the second switch terminal 142, and the fourth inductive terminal 154 is connected to the third switch terminal 143;

[0035] Among them, when the first sensing terminal 151 has an electrical signal input, the third sensing terminal 153 and the fourth sensing terminal 154 are connected, the second switch terminal 142 and the third switch terminal 143 have the same potential, and the switch tube 140 is turned off; when the first sensing terminal 151 has no electrical signal input, the third sensing terminal 153 and the fourth sensing terminal 154 are disconnected, the second switch terminal 142 and the third switch terminal 143 have different potentials, and the switch tube 140 is turned on.

[0036] Furthermore, if Figure 1 As shown, Figure 1 This is an optional circuit diagram of a toilet control circuit provided by an embodiment of the present application, wherein the control chip 110 is used to ultimately control the opening or closing of the flusher. The control chip 110 can be a microcontroller (MCU), a digital signal processor (DSP), etc., or the control chip 110 can also be specifically selected according to actual conditions. The embodiment of the present application does not limit the selected type of the control chip 110.

[0037] Furthermore, in order to achieve the slow descent of the components connected to the control chip 110 in both the power-on and power-off states and meet the energy-saving requirements of the smart toilet, the control chip 110 is usually also connected to the diode 120, the slow-down resistor 130, and the induction switch module 150. These parts will be described in detail below.

[0038] Furthermore, if Figure 1As shown, the drive input pins of the control chip 110 are BI pin (pin 1) and FI pin (pin 2), the first drive output pin is FO pin (pins 5 and 6), and the second drive output pin is BO pin (pins 7 and 8); in the embodiment of the present application, two BO pins and two FO pins are respectively provided and are both connected to the toilet control circuit. In this way, the control chip 110 can control each drive output pin to output a high level signal or a low level signal according to the different logic signals of the drive input pins. When one of the first drive output pins is damaged, another first drive output pin can be used to output the signal.

[0039] Furthermore, the BI pin may be connected to the DRV_COVER_H pin of other components through a resistor (R17), and the FI pin may be connected to the DRV_COVER_L pin of other components through a resistor (R18), and both the DRV_COVER_H pin and the DRV_COVER_L pin are used to transmit electrical signals to the drive input pin.

[0040] In some embodiments, the control chip 110 further includes a ground pin and a power pin, the ground pin is used for grounding, and the power pin is electrically connected to an external power supply through a filter circuit, and the filter circuit includes a first capacitor 111 and a second capacitor 112 connected in parallel.

[0041] Among them, the ground pin (pin 3) is used for grounding, and the power pin (pin 4) is used to connect to an external power supply to provide power to the toilet control circuit; further, the power pin can be directly connected to the external power supply, or it can be connected to the external power supply through a filter circuit to increase the stability of the circuit, such as Figure 1 As shown, the filter circuit includes a first capacitor 111 and a second capacitor 112 connected in parallel.

[0042] Among them, the first capacitor 111 can be an electrolytic capacitor, the second capacitor 112 can be a ceramic capacitor, and the first capacitor 111 and the second capacitor 112 are both used for filtering to stabilize the power supply and reduce power supply glitches; further, the first capacitor 111 filters low frequencies, and the second capacitor 112 filters high frequencies.

[0043] Of course, the filter circuit can also connect more components in parallel or in series to achieve the purpose of better stabilizing the toilet control circuit. The connected components and the connection method of the components can be set according to actual conditions, and the embodiments of the present application do not make specific restrictions.

[0044] The diode 120 may be a rectifier diode, a light emitting diode, a voltage regulator diode, etc. The specific type of the diode 120 may be selected according to actual conditions. Figure 1As shown, the diode 120 in the embodiment of the present application is a rectifier diode, the end of the diode 120 close to point A is the anode of the diode 120, and the end close to point B is the cathode of the diode 120.

[0045] The resistance of the slow-down resistor 130 is usually small. For example, the resistance of the slow-down resistor 130 is 1 ohm (Ω). When a 12V voltage is applied to both ends of the slow-down resistor 130, the current flowing through the slow-down resistor 130 is 12A. At this time, the toilet control circuit will drive the rotating motor 160 through the 12A current. Of course, the specific resistance of the slow-down resistor 130 can also be set according to actual conditions. Generally speaking, the smaller the resistance of the slow-down resistor 130, the better the slow-down effect.

[0046] Alternatively, the slow-down resistor 130 may be a sliding resistor, so that its specific resistance value can be adjusted according to actual conditions, thereby better meeting the numerical requirements for the slow-down current in different scenarios.

[0047] In some embodiments, the switch tube 140 is an NPN transistor, which includes a collector, a base and an emitter. The collector is connected to the other end of the slow-down resistor 130 , the base is connected to the third sensing terminal 153 , and the emitter is connected to the fourth sensing terminal 154 .

[0048] Among them, the NPN transistor refers to a transistor composed of two N-type semiconductors with a P-type semiconductor sandwiched between them. It can amplify weak electrical signals and control the on and off of electrical signals. Figure 1 As shown, Figure 1 The transistor in is an NPN transistor. At this time, the first switch terminal 141 is the collector, the second switch terminal 142 is the base, and the third switch terminal 143 is the emitter; and the collector is connected to one end of the slow-down resistor 130, the base is connected to the third induction terminal 153, and the emitter is connected to the fourth induction terminal 154.

[0049] It should be noted that N-type semiconductor is also called electron-type semiconductor, that is, an impurity semiconductor in which the concentration of free electrons is much greater than the concentration of holes; P-type semiconductor is also called hole-type semiconductor, which is a semiconductor that mainly conducts electricity through positively charged holes.

[0050] Furthermore, when the third sensing terminal 153 and the fourth sensing terminal 154 are connected, the base and the emitter connected to the third sensing terminal 153 and the fourth sensing terminal 154 are connected. At this time, the base and the emitter have the same potential, the NPN transistor does not work, and the control chip 110 is directly connected to the rotating motor 160 to control the rotating motor 160 to work. It can be understood that since the NPN transistor does not work, no current flows through the slow-down resistor 130, so no additional power consumption is generated, thereby saving electricity costs, and achieving energy saving while realizing slow-down control in the power-on state.

[0051] Among them, the transistor can also be a PNP type transistor, which also includes a collector, a base and an emitter. The difference is: when a forward voltage is applied between the base and the emitter of the NPN type transistor, current will flow from the collector to the emitter; and when a forward voltage is applied between the base and the emitter of the PNP type transistor, current will flow from the emitter to the collector. Therefore, based on the different types of transistors selected, different ends of the transistor can be specifically connected according to the direction of current flow when voltage is applied. This operation is a common technical means used by technicians in this field and will not be repeated here.

[0052] In some embodiments, the switch tube 140 is an NMOS tube, which includes a drain, a gate and a source. The drain is connected to the other end of the slow-down resistor 130 , the gate is connected to the third sensing terminal 153 , and the source is connected to the fourth sensing terminal 154 .

[0053] Among them, the NMOS tube (N-channel Meta l-Oxide-Semiconductor trans is stor) is a transistor based on Metal Oxide Semiconductor Field Effect Transistor (Meta l-Oxide-Semiconductor Field-Effect Transistor, MOSFET) technology.

[0054] Further, when the transistor is an NMOS transistor, the first switch terminal 141 is a drain, the second switch terminal 142 is a gate, and the third switch terminal 143 is a source; and the drain is connected to one end of the slow-down resistor 130, the gate is connected to the third sensing terminal 153, and the source is connected to the fourth sensing terminal 154.

[0055] Furthermore, when the third sensing terminal 153 and the fourth sensing terminal 154 are connected, the gate and the source connected to the third sensing terminal 153 and the fourth sensing terminal 154 are connected. At this time, the gate and the source have the same potential, the NMOS tube does not work, and the control chip 110 is directly connected to the rotating motor 160 to control the rotating motor 160 to work. It can be understood that since the NMOS tube does not work, no current flows through the slow-down resistor 130, so no additional power consumption is generated, thereby saving electricity costs, and achieving energy saving while realizing slow-down control in the power-on state.

[0056] Among them, the transistor can also be a PMOS tube, which also includes a drain, a gate and a source. The difference is that when a positive voltage is applied between the gate and the source of the PMOS tube, current will flow from the drain to the source; and when a positive voltage is applied between the gate and the source of the PMOS tube, current will flow from the source to the drain. Therefore, based on the different types of transistors selected, different ends of the transistor can be specifically connected according to the direction of current flow when voltage is applied. This operation is a common technical means of technicians in this field and will not be repeated here.

[0057] In some embodiments, the sensing switch module 150 includes a photodiode 120 and a photosensitive switch, the anode of the photosensitive diode 120 is connected to the ramp-down power supply through a first resistor 180, the cathode of the photosensitive diode 120 is grounded, one end of the photosensitive switch is connected to the third switch end 143, and the other end of the photosensitive switch is connected to the second switch end 142; when an electrical signal is input to the anode of the photosensitive diode 120, the photosensitive switch converts the optical signal emitted by the photosensitive diode 120 into an electrical signal to make the two ends of the photosensitive switch conductive.

[0058] Among them, the anode of the photodiode 120 corresponds to the first sensing end 151, and the cathode of the photodiode 120 corresponds to the second sensing end 152; the anode of the photodiode 120 can be directly connected to the ramp-down power supply, or, a first resistor 180 is added to the toilet control circuit, one end of the first resistor 180 is connected to the anode of the photodiode 120, and the other end of the first resistor 180 is connected to the ramp-down power supply. In this way, the resistor current limiting is used to prevent the ramp-down power supply from generating excessive current and thereby damaging the photodiode 120, thereby stabilizing the toilet control circuit.

[0059] Among them, the two ends of the photosensor correspond to the third sensing end 153 and the fourth sensing end 154 respectively; when the first sensing end 151 receives the electrical signal transmitted by the ramp-down power supply, the photodiode 120 emits a light signal. At this time, the photosensor converts the light signal into an electrical signal, and the two ends of the photosensor are turned on and have the same potential.

[0060] Furthermore, the sensing switch module 150 can be an optocoupler, or it can be a component such as a Hall sensor, a capacitive sensor, etc., so that when an electrical signal is input to the relief power supply, the potentials of two ends of the sensing switch module 150 are the same, and thus the potentials of the switch ends connected to these two ends are also the same, and the switch tube 140 does not work. In this way, the electric energy consumed by the slow-down resistor 130 can be shielded when the power is on.

[0061] Furthermore, the ramp-down power supply and the external power supply can both be 12 volts (V), and the electrical signals of the ramp-down power supply and the external power supply can be simultaneously connected to the toilet control circuit; that is, in the power-on state, the ramp-down power supply and the external power supply simultaneously provide voltage to the toilet control circuit, and in the power-off state, the ramp-down power supply and the external power supply simultaneously cut off the electrical signals provided to the toilet control circuit.

[0062] In some embodiments, the toilet control circuit is also electrically connected to the rotating motor 160, a coil is arranged inside the rotating motor 160, the rotating motor 160 includes a first driving pole and a second driving pole, the anode of the diode 120 is connected to the first driving pole, and the third switch terminal 143 is connected to the second driving pole; the rotating motor 160 is also electrically connected to the angle sensor 161, and the third driving pole of the angle sensor 161 is connected to the driving power supply, and the fourth driving pole of the angle sensor 161 is grounded.

[0063] The rotating motor 160 can be a DC motor, a stepper motor, an AC motor or a servo motor, which can be selected according to actual conditions. The rotating motor 160 is used to connect to the mechanical equipment to be driven. In the embodiment of the present application, the mechanical equipment is the seat ring and seat cover of the smart toilet. When the toilet control circuit is in the power-on state, the induction switch module 150 is turned on, the transistor does not work, the slow-down resistor 130 is shielded, and the two ends of the control chip 110 are directly electrically connected to the first drive pole (OUT1) and the second drive pole (OUT2) of the rotating motor 160. At this time, the slow-down resistor 130 will not consume electrical energy.

[0064] Furthermore, the coil arranged in the rotating motor 160 can generate a magnetic field. When the toilet control circuit is in a power-off state, if a person manually rotates the toilet seat or seat cover, the flipping of the seat or seat cover will cause the magnetic field to change, thereby generating an induced electromotive force. The induced electromotive force can drive the charge to move in a closed loop to form an electric current. The current can drive the rotating motor 160 to work in a short time, thereby completing the mechanical descent of the seat or seat cover, ensuring that the seat or seat cover is controlled to slowly fall by the rotating motor 160 with an opposite force during the flipping process, providing the user with a quiet, smooth and safe use experience.

[0065] The rotating motor 160 is also electrically connected to the angle sensor 161, and the driving power supply is electrically connected to the angle sensor 161 through the third driving pole of the angle sensor 161. The power supply of the driving power supply can be 5V, and the fourth driving pole of the angle sensor 161 is grounded. The angle sensor 161 is used to measure the rotation angle of the rotating motor 160 in real time so as to feed back the angle information to the relevant control system for further subsequent operations. In addition, the angle sensor 161 is also provided with a M_ANGLE pin for connecting with other components to realize corresponding functions, which is not limited in the embodiment of the present application.

[0066] Among them, the angle sensor 161 can be a magnetic angle sensor 161, a capacitive angle sensor 161, an inertial measurement sensor, etc. The selection of the angle sensor 161 can be set according to actual conditions, and the embodiment of the present application does not make specific restrictions.

[0067] In some embodiments, the toilet control circuit further includes a protection circuit electrically connected to the control chip 110 and the rotating motor 160 , and the protection circuit includes a third capacitor 171 and an overvoltage protector 172 connected in parallel.

[0068] like Figure 1 As shown, the third capacitor 171 and the overvoltage protector 172 are connected in parallel to the toilet control circuit to protect the toilet control circuit; the third capacitor 171 can be an electrolytic capacitor, a ceramic capacitor or an electrolytic double-layer capacitor; the overvoltage protector 172 can be a transient voltage suppressor (TVS), a Zener diode or a clamping diode, etc., which can be set according to actual conditions, and the embodiments of the present application do not make specific restrictions.

[0069] Furthermore, the third capacitor 171 is used to filter out burrs generated when the rotating motor 160 rotates, and the overvoltage protector 172 is used to prevent the high voltage generated when the rotating motor 160 does not work normally from flowing back to the sensing switch module 150, thereby causing damage to the sensing switch module 150.

[0070] In some embodiments, the toilet control circuit further includes a second resistor 181 , one end of the second resistor 181 is connected to the third sensing end 153 , and the other end of the second resistor 181 is connected to the anode of the diode 120 .

[0071] Furthermore, adding a second resistor 181 between the diode 120 and the sensing switch module 150 can prevent the diode 120 and the sensing switch module 150 from being damaged due to overcurrent or overpower, thereby improving the stability and reliability of the toilet control circuit.

[0072] Furthermore, the number of resistors added between the diode 120 and the sensing switch module 150 can be set according to actual conditions, and the embodiment of the present application does not impose any specific limitation on this.

[0073] In some embodiments, the toilet control circuit also includes a third resistor 182 and a fourth resistor 183, one end of the third resistor 182 and the fourth resistor 183 are both connected to the second switch terminal 142, the other end of the third resistor 182 is connected to the third sensing terminal 153, and the other end of the fourth resistor 183 is connected to the third switch terminal 143.

[0074] Furthermore, a third resistor 182 and a fourth resistor 183 are added between the switch tube 140 and the sensing switch module 150 to prevent the switch tube 140 and the sensing switch module 150 from being damaged due to overcurrent or overpower, thereby improving the stability and reliability of the toilet control circuit.

[0075] Furthermore, the number of resistors added between the switch tube 140 and the sensing switch module 150, and the connection mode (parallel or series) of the added resistors can be set according to actual conditions, and the embodiments of the present application do not impose specific restrictions on this.

[0076] In some embodiments, the present application also provides a smart cover, which can be a toilet seat or toilet seat cover connected to the main body of the smart toilet, a squat toilet cover to prevent odor in the squat pit, etc. The present application does not limit the specific type of the smart cover. The toilet control circuit mentioned above can be set in the smart cover to achieve a good slow-down function of the smart cover under energy-saving requirements.

[0077] In some embodiments, the present application also provides a smart toilet, which includes a smart toilet body, a toilet seat and a toilet seat cover. The above-mentioned toilet control circuit can be arranged in the smart toilet to achieve a good slow-down function of the toilet seat and the toilet seat cover of the smart toilet under energy-saving requirements.

[0078] It should also be understood that the various implementation methods provided in the embodiments of the present application can be combined arbitrarily to achieve different technical effects.

[0079] The above is a specific description of the preferred implementation of the present application, but the present application is not limited to the above implementation mode. Technical personnel familiar with the field can also make various equivalent modifications or substitutions under the shared conditions without violating the spirit of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A toilet control circuit, characterized in that: include: A control chip, wherein the control chip comprises a drive input pin and a drive output pin, wherein the drive output pin comprises a first drive output pin and a second drive output pin; A diode and a slow-down resistor, wherein the anode of the diode is connected to the first drive output pin, and the cathode of the diode is connected to one end of the slow-down resistor; A switch tube, the switch tube comprising a first switch end, a second switch end and a third switch end, the first switch end is connected to the other end of the slow-down resistor, and the third switch end is connected to the second drive output pin; The inductive switch module comprises a first inductive end, a second inductive end, a third inductive end and a fourth inductive end, wherein the first inductive end is connected to a ramp-down power supply, the second inductive end is grounded, the third inductive end is connected to the second switch end, and the fourth inductive end is connected to the third switch end; Among them, when the first sensing end has an electrical signal input, the third sensing end and the fourth sensing end are connected, the second switch end and the third switch end have the same potential, and the switch tube is turned off; when the first sensing end has no electrical signal input, the third sensing end and the fourth sensing end are disconnected, the second switch end and the third switch end have different potentials, and the switch tube is turned on.

2. The toilet control circuit according to claim 1, characterized in that: The switch tube is an NPN type triode, and the NPN type triode includes a collector, a base and an emitter. The collector is connected to the other end of the slow-down resistor, the base is connected to the third sensing end, and the emitter is connected to the fourth sensing end.

3. The toilet control circuit according to claim 1, characterized in that: The switch tube is an NMOS tube, and the NMOS tube includes a drain, a gate and a source. The drain is connected to the other end of the slow-down resistor, the gate is connected to the third sensing end, and the source is connected to the fourth sensing end.

4. The toilet control circuit according to claim 1, characterized in that: The sensing switch module includes a photodiode and a photosensitive switch, the anode of the photosensitive diode is connected to the ramp-down power supply through a first resistor, the cathode of the photosensitive diode is grounded, one end of the photosensitive switch is connected to the third switch end, and the other end of the photosensitive switch is connected to the second switch end; when an electrical signal is input to the anode of the photosensitive diode, the photosensitive switch converts the optical signal emitted by the photosensitive diode into an electrical signal to make the two ends of the photosensitive switch conductive.

5. The toilet control circuit according to claim 1, characterized in that: The toilet control circuit is also electrically connected to a rotating motor, a coil is arranged inside the rotating motor, the rotating motor includes a first driving pole and a second driving pole, the anode of the diode is connected to the first driving pole, and the third switch end is connected to the second driving pole; the rotating motor is also electrically connected to an angle sensor, and the third driving pole of the angle sensor is connected to a driving power supply, and the fourth driving pole of the angle sensor is grounded.

6. The toilet control circuit according to claim 1, characterized in that: The control chip further includes a ground pin and a power pin, wherein the ground pin is used for grounding, and the power pin is electrically connected to an external power supply via a filter circuit, wherein the filter circuit includes a first capacitor and a second capacitor connected in parallel.

7. The toilet control circuit according to claim 5, characterized in that: The toilet control circuit also includes a protection circuit that is electrically connected to both the control chip and the rotating motor, and the protection circuit includes a third capacitor and an overvoltage protector that are connected in parallel.

8. The toilet control circuit according to claim 1, characterized in that: The toilet control circuit also includes a second resistor, one end of the second resistor is connected to the third sensing end, and the other end of the second resistor is connected to the anode of the diode.

9. The toilet control circuit according to claim 1, characterized in that: The toilet control circuit also includes a third resistor and a fourth resistor, one end of the third resistor and the fourth resistor are both connected to the second switch end, the other end of the third resistor is connected to the third sensing end, and the other end of the fourth resistor is connected to the third switch end.

10. A smart cover, characterized in that: The toilet control circuit comprises the toilet control circuit described in any one of claims 1 to 9.

11. A smart toilet, characterized in that: The toilet control circuit comprises the toilet control circuit described in any one of claims 1 to 9.

Images